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<?php

/**
 * This file is part of the Lean Mapper library (http://www.leanmapper.com)
 *
 * Copyright (c) 2013 Vojtěch Kohout (aka Tharos)
 *
 * For the full copyright and license information, please view the file
 * license.md that was distributed with this source code.
 */

namespace LeanMapper\Reflection;

/**
 * @author Vojtěch Kohout
 */
class AliasesBuilder
{

    /** @var array */
    private $aliases = [];

    /** @var string */
    private $current = '';

    /** @var string */
    private $lastPart = '';



    /**
     * Sets current definition to empty string
     */
    public function resetCurrent()
    {
        $this->current = $this->lastPart = '';
    }



    /**
     * Appends name to current definition
     *
     * @param string $name
     */
    public function appendToCurrent($name)
    {
        if ($this->current !== '') {
            $this->current .= '\\';
        }
        $this->current .= $this->lastPart = $name;
    }



    /**
     * Appends last part to current definition
     *
     * @param string $name
     */
    public function setLast($name)
    {
        $this->lastPart = $name;
    }



    /**
     * Finishes building of current definition and begins to build new one
     */
    public function finishCurrent()
    {
        $this->aliases[$this->lastPart] = $this->current;
        $this->resetCurrent();
    }



    /**
     * Creates new Aliases instance
     *
     * @param string $namespace
     * @return Aliases
     */
    public function getAliases($namespace = '')
    {
        return new Aliases($this->aliases, $namespace);
    }

}